Margie, Although I have never been tested I do get short of breath when I go "off" and when I am dyskinetic. I attribute it to the rigidity. How I describe it is it is like cement drying very slowly. I am going to see my neuro this month and plan on questioning him on this. The only thing that relieves me is to get flat on my back and do relaxation. I invision fresh breath air going into my lungs. If that doesn't work I do a whole lot of praying. We may be pioneers on this subject because everyone's rigidity is different and takes on different meaning. Some days I move like a 20 yr old others I move like I am 80. Also physical therapy and speech therapy could help Dick because of breathing exercises. Much luck and prayers are with you and Dick. Sandy Norris 40/28/20 "Faith is the daring of the soul to go farther than it can see."